}
StringRef AsmPrinter::getTargetTriple() const {
- return TM.getTargetTriple();
+ return TM.getTargetTriple().str();
}
/// getCurrentSection() - Return the current section we are emitting to.
OutStreamer->InitSections(false);
- Mang = new Mangler(TM.getDataLayout());
+ Mang = new Mangler();
// Emit the version-min deplyment target directive if needed.
//
// We're at the module level. Construct MCSubtarget from the default CPU
// and target triple.
std::unique_ptr<MCSubtargetInfo> STI(TM.getTarget().createMCSubtargetInfo(
- TM.getTargetTriple(), TM.getTargetCPU(), TM.getTargetFeatureString()));
+ TM.getTargetTriple().str(), TM.getTargetCPU(),
+ TM.getTargetFeatureString()));
OutStreamer->AddComment("Start of file scope inline assembly");
OutStreamer->AddBlankLine();
EmitInlineAsm(M.getModuleInlineAsm()+"\n", *STI, TM.Options.MCOptions);
if (MAI->doesSupportDebugInformation()) {
bool skip_dwarf = false;
- if (Triple(TM.getTargetTriple()).isKnownWindowsMSVCEnvironment()) {
+ if (TM.getTargetTriple().isKnownWindowsMSVCEnvironment()) {
Handlers.push_back(HandlerInfo(new WinCodeViewLineTables(this),
DbgTimerName,
CodeViewLineTablesGroupName));
if (MAI->hasDotTypeDotSizeDirective()) {
// We can get the size as difference between the function label and the
// temp label.
- const MCExpr *SizeExp =
- MCBinaryExpr::createSub(MCSymbolRefExpr::create(CurrentFnEnd, OutContext),
- MCSymbolRefExpr::create(CurrentFnSymForSize,
- OutContext),
- OutContext);
- OutStreamer->emitELFSize(cast<MCSymbolELF>(CurrentFnSym), SizeExp);
+ const MCExpr *SizeExp = MCBinaryExpr::createSub(
+ MCSymbolRefExpr::create(CurrentFnEnd, OutContext),
+ MCSymbolRefExpr::create(CurrentFnSymForSize, OutContext), OutContext);
+ if (auto Sym = dyn_cast<MCSymbolELF>(CurrentFnSym))
+ OutStreamer->emitELFSize(Sym, SizeExp);
}
for (const HandlerInfo &HI : Handlers) {
if (!ModuleFlags.empty())
TLOF.emitModuleFlags(*OutStreamer, ModuleFlags, *Mang, TM);
- Triple TT(TM.getTargetTriple());
- if (TT.isOSBinFormatELF()) {
+ if (TM.getTargetTriple().isOSBinFormatELF()) {
MachineModuleInfoELF &MMIELF = MMI->getObjFileInfo<MachineModuleInfoELF>();
// Output stubs for external and common global variables.
/// .set if it avoids relocations.
void AsmPrinter::EmitLabelDifference(const MCSymbol *Hi, const MCSymbol *Lo,
unsigned Size) const {
- if (!MAI->doesDwarfUseRelocationsAcrossSections())
- if (OutStreamer->emitAbsoluteSymbolDiff(Hi, Lo, Size))
- return;
-
- // Get the Hi-Lo expression.
- const MCExpr *Diff =
- MCBinaryExpr::createSub(MCSymbolRefExpr::create(Hi, OutContext),
- MCSymbolRefExpr::create(Lo, OutContext),
- OutContext);
-
- if (!MAI->doesSetDirectiveSuppressesReloc()) {
- OutStreamer->EmitValue(Diff, Size);
- return;
- }
-
- // Otherwise, emit with .set (aka assignment).
- MCSymbol *SetLabel = createTempSymbol("set");
- OutStreamer->EmitAssignment(SetLabel, Diff);
- OutStreamer->EmitSymbolValue(SetLabel, Size);
+ OutStreamer->emitAbsoluteSymbolDiff(Hi, Lo, Size);
}
/// EmitLabelPlusOffset - Emit something like ".long Label+Offset"
/// composed of a repeated sequence of identical bytes and return the
/// byte value. If it is not a repeated sequence, return -1.
static int isRepeatedByteSequence(const Value *V, TargetMachine &TM) {
-
if (const ConstantInt *CI = dyn_cast<ConstantInt>(V)) {
- if (CI->getBitWidth() > 64) return -1;
-
- uint64_t Size =
- TM.getDataLayout()->getTypeAllocSize(V->getType());
- uint64_t Value = CI->getZExtValue();
+ uint64_t Size = TM.getDataLayout()->getTypeAllocSizeInBits(V->getType());
+ assert(Size % 8 == 0);
- // Make sure the constant is at least 8 bits long and has a power
- // of 2 bit width. This guarantees the constant bit width is
- // always a multiple of 8 bits, avoiding issues with padding out
- // to Size and other such corner cases.
- if (CI->getBitWidth() < 8 || !isPowerOf2_64(CI->getBitWidth())) return -1;
+ // Extend the element to take zero padding into account.
+ APInt Value = CI->getValue().zextOrSelf(Size);
+ if (!Value.isSplat(8))
+ return -1;
- uint8_t Byte = static_cast<uint8_t>(Value);
-
- for (unsigned i = 1; i < Size; ++i) {
- Value >>= 8;
- if (static_cast<uint8_t>(Value) != Byte) return -1;
- }
- return Byte;
+ return Value.zextOrTrunc(8).getZExtValue();
}
if (const ConstantArray *CA = dyn_cast<ConstantArray>(V)) {
// Make sure all array elements are sequences of the same repeated
// byte.
assert(CA->getNumOperands() != 0 && "Should be a CAZ");
- int Byte = isRepeatedByteSequence(CA->getOperand(0), TM);
- if (Byte == -1) return -1;
-
- for (unsigned i = 1, e = CA->getNumOperands(); i != e; ++i) {
- int ThisByte = isRepeatedByteSequence(CA->getOperand(i), TM);
- if (ThisByte == -1) return -1;
- if (Byte != ThisByte) return -1;
- }
+ Constant *Op0 = CA->getOperand(0);
+ int Byte = isRepeatedByteSequence(Op0, TM);
+ if (Byte == -1)
+ return -1;
+
+ // All array elements must be equal.
+ for (unsigned i = 1, e = CA->getNumOperands(); i != e; ++i)
+ if (CA->getOperand(i) != Op0)
+ return -1;
return Byte;
}
MCValue MV;
if (!(*ME)->evaluateAsRelocatable(MV, nullptr, nullptr) || MV.isAbsolute())
return;
+ const MCSymbolRefExpr *SymA = MV.getSymA();
+ if (!SymA)
+ return;
- const MCSymbol *GOTEquivSym = &MV.getSymA()->getSymbol();
+ // Check that GOT equivalent symbol is cached.
+ const MCSymbol *GOTEquivSym = &SymA->getSymbol();
if (!AP.GlobalGOTEquivs.count(GOTEquivSym))
return;
if (!BaseGV)
return;
+ // Check for a valid base symbol
const MCSymbol *BaseSym = AP.getSymbol(BaseGV);
- if (BaseSym != &MV.getSymB()->getSymbol())
+ const MCSymbolRefExpr *SymB = MV.getSymB();
+
+ if (!SymB || BaseSym != &SymB->getSymbol())
return;
// Make sure to match:
TM);
}
-/// GetExternalSymbolSymbol - Return the MCSymbol for the specified
-/// ExternalSymbol.
+/// Return the MCSymbol for the specified ExternalSymbol.
MCSymbol *AsmPrinter::GetExternalSymbolSymbol(StringRef Sym) const {
SmallString<60> NameStr;
- Mang->getNameWithPrefix(NameStr, Sym);
+ Mangler::getNameWithPrefix(NameStr, Sym, *TM.getDataLayout());
return OutContext.getOrCreateSymbol(NameStr);
}
projects / oota-llvm.git / blobdiff